Cov txheej txheem:
Video: Kev daws qhov system txhais li cas?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Cov daws ntawm zoo li ib qhov system yog tus txiav txim khub uas yog a daws rau ob qhov sib npaug. Rau daws a qhov system ntawm linear equations graphically peb teeb tsa ob qho tib si sib npaug hauv tib qho kev ua haujlwm qhov system . Cov daws mus rau qhov system yuav nyob rau hauv lub point uas ob kab sib tshuam.
Ib yam li ntawd, nws txhais li cas los daws qhov system?
SYSTEMS NTAWM EQUATIONS. A qhov system ntawm equations yog ib qho kev sib sau ntawm ob lossis ntau qhov sib npaug nrog tib yam tsis paub. Hauv daws a qhov system ntawm qhov sib npaug, peb sim nrhiav qhov tseem ceeb rau txhua qhov tsis paub tias yuav txaus siab txhua qhov sib npaug hauv qhov system.
Qhov thib ob, 3 txoj hauv kev los daws cov kab ke sib npaug yog dab tsi? Algebra 1 Txoj kev hloov Peb txoj kev uas feem ntau siv los daws cov kab ke sib npaug yog hloov pauv, tshem tawm thiab augmented matrices. Kev hloov pauv thiab tshem tawm yog txoj hauv kev yooj yim uas tuaj yeem daws tau ntau lub tshuab ntawm ob qhov sib npaug hauv ob peb kauj ruam yooj yim.
Nyob rau hauv no hais txog, koj yuav nrhiav tau qhov kev daws teeb meem ntawm ib qho system li cas?
Txhawm rau nrhiav kev daws teeb meem rau cov kab ke ntawm kab sib npaug, koj tuaj yeem ua ib qho ntawm cov hauv qab no:
- daws los ntawm Graphing.
- daws los ntawm Elmination.
- daws los ntawm Kev Hloov.
- daws nrog Meta Tshuab xam zauv.
- Sib tham sib System of Linear Equations.
Thaum twg qhov system tsis muaj kev daws teeb meem?
Yog hais tias sib xws system muaj tus naj npawb ntawm infinite kev daws teeb meem , nws yog nyob. Thaum koj kos cov kab zauv, ob qho tib si sib npaug sawv cev tib kab. Yog ib system tsis muaj kev daws teeb meem , yog hais tias tsis sib haum. Cov graphs ntawm cov kab tsis sib tshuam, yog li cov graphs yog parallel thiab muaj tsis muaj tshuaj.
Pom zoo:
Koj yuav daws tau qhov system ntawm peb qhov sib npaug li cas los ntawm kev tshem tawm?
Xaiv ib qho sib txawv ntawm ob qhov sib npaug, hais qhov sib npaug (2) thiab (3), thiab tshem tawm qhov sib txawv. Kev daws qhov system tsim los ntawm kev sib npaug (4) thiab (5). Tam sim no, hloov z = 3 rau hauv kab zauv (4) kom pom y. Siv cov lus teb los ntawm Kauj Ruam 4 thiab hloov mus rau hauv ib qho kev sib npaug uas muaj qhov sib txawv ntxiv
Qhov twg yog acidic ntau dua ib qho kev daws ntawm pH 2 lossis kev daws ntawm pH 6?
Kev piav qhia: pH yog qhov ntsuas ntawm acidity lossis alkalinity ntawm cov tshuaj. concentration siab dua yog acidity. Yog li ib qho kev daws ntawm pH = 2 yog acidic ntau dua li ntawm pH = 6 los ntawm qhov zoo ntawm 10000
Koj yuav daws qhov sib npaug li cas los ntawm kev cais qhov sib txawv?
Cov txheej txheem yooj yim los cais qhov sib txawv yog "ua ib yam dab tsi rau ob tog" ntawm qhov sib npaug, xws li ntxiv, rho tawm, sib npaug, lossis faib ob sab ntawm qhov sib npaug los ntawm tib tus lej. Los ntawm kev rov ua cov txheej txheem no, peb tuaj yeem tau txais qhov sib txawv ntawm ib sab ntawm qhov sib npaug
Lub ntsiab txhais ntawm kev daws ntawm ib qho system yog dab tsi?
Definition (Solution sets) Ib qho kev daws teeb meem ntawm qhov kev sib npaug yog cov npe ntawm cov lej x, y, z, uas ua rau tag nrho cov kab zauv muaj tseeb ib txhij. Qhov kev daws teeb meem ntawm ib qho kev sib npaug ntawm qhov sib npaug yog sau los ntawm txhua qhov kev daws teeb meem
Koj yuav daws qhov kev sib npaug lossis qhov tsis sib xws li cas?
Txhawm rau daws qhov tsis sib xws siv cov kauj ruam hauv qab no: Kauj Ruam 1 Tshem tawm cov feem ntau los ntawm kev muab tag nrho cov ntsiab lus los ntawm tus lej qis tshaj ntawm txhua feem. Kauj Ruam 2 Ua kom yooj yim los ntawm kev sib txuas zoo li cov ntsiab lus ntawm txhua sab ntawm qhov tsis sib xws. Kauj Ruam 3 Ntxiv lossis rho tawm kom tau txais qhov tsis paub ntawm ib sab thiab tus lej ntawm lwm qhov